Boiler cleaner



Patented ct. 11, 1927.

lessee? unirse stares PA'rsNrol-"Fics I i NORMAN L. SNOW, OF DETROIT, MICHIGAN, ASSGNOR TO DLAMOND yPOWER SPECALTY l CORPORATION, OF DETROIT, MICHIGAN, A COREORATEON OF MICHIGAN.

BOILER CLEANER.

vApplication. led February the invention resides in the novelfeatures of construction and combinations and arrangements of parts as more fully hereinafter set forth.

In the drawings: y

Figure 1 is a view partly in longitudinal section through a boiler cleaner embodying my invention, part of the valve control mechanism being shown in full view.

Figures 2 and 3 are respectively cross sections on the lines 2 2 and 3-3 of Figure 1;

Figure et is a cross section on the line 4 4 of Figure 3; Y

Figure 5 is a plan view showing the controlling device of the valve actuating mechanism. v

1 is the rotary blower element of the boiler cleaner, and 2 the stationary gooseneck for supplying the cleaning fluid, such as steam or the like, to the blower element. The blower element is rotated by means of a flexible connection such as a-chain extending. over the sheave wheel 3 which is operatively connected to the pinion 1 meshing with the gear wheel 5 secured upon the blower element.

The blower element comprises the outer tube 6 having a closed inner end and the inner tube 7 concentrically located within the outer tube and having the outwardly extending annular flange 8 abutting the wall of the outer tube. rlhe outer tube is provided with the series of nozzles 9 located inwardly beyond the end ofthe inner tube and also with the series of nozzles 10 located outwardly beyondthe end of the inner tube. The gooseneck 2 has the pair of passages 11 and 12 separated by a wall 11a, the first of which passa-ges communicates with the inner tube 7 of the blower element through the opening 12b, and the second ofwhich communicates with the chamber 122L and thence with the chamber formed between the inner tube 7 and outer tube 6 of the blower element through the openings 1S at the outer 4, 1924. serieu No. 690,616.

end of the outer tube, 14 and 15 are valves controlling theports 16 at the lower ends of the passageways 12 and 11 respectively of the gooseneck, the arrangementbeingsuch that with the valve in open position, either respective series of nozzles 9 or 10 is discharging cleaning fluid.

The valves are actuated automatically up-V on the rotation of the blower element 1',.and

furthermore, the arrangement is such that the valves are alternately moved to open and closed positions. In detail, 17 is a cam at oneY side of the gear wheel. 5 and rotatable therewith, and 18 is a pivotal lever, theupper end of which contacts with the cam 17. This lever is substantially L-shaped and the lower edge thereof near the bend is engageable with the upper surface of the controlling device 19 which is in the form of adisk. This disk is rotatably mounted upon the vertical stem 20 and when `depressed by lever 18 is returned to its normal position by means of the coil spring 21 surrounding the stem and abutting the disk and the upper face of thel gooseneck at its lower end. The disk, in its normal position is held out of contact with the gear wheel 5, by means of the abutment of boss 20a, an integral part of the disk, with the pin 2Ob projecting from the stem 20. The disk is provided with the openings 22 which are angularly spaced at equal distances, and also so spaced that when one of the stems of either the valves 14 or 15 registers with an-opeHing, the other stem will register with the solid portion of the disk between the openings, as shown particularly in Figure 5. The disk 19 has a suficient thickness so that when axially depressed by the lever 18 the valve stem enga-g"- ing in an opening in the disk will not be depressed. and consequently its valve will remain closed. However, the valve stem coming into engagement with the solid portion of the disk will'be depressed and its valvewill be opened against the tension of the coil spring 23 which tends to normally maintain thevalve in closed position. v

For the purpose of alternately actuating the valves 111 and 15 the controlling disk 19 is provided with the peripheral projections or teeth 2e which are engageable by the radially extending projection or pin 25 upon the gear wheel 5 and which are so spaced that for each revolution of the gear wheel blower element.

parent thatthe length of cam 17 controls the Y 2 Y f y 1,545,307

5 the disk 19 is advanced one tooth and its openings and the .solid portionsV between the openings are successively brought into registration with the valvestems. As a consequence, the valves are alternately-moved to open position `during the rotation of the In this connection it 1s ap- D open or closed.

lenv'th of time that the valves will remain rocating said valves.

t 2. In a boiler cleaner, the combination with a blower element having a plurality of nozzles arranged in groups for discharging cleaning fluid, ofV meansfor separately supplying cleaning fluid to each of said groups, a plurality of independently movable valves for controlling said supply means, and means `dependent upon the movement of said blower" element for moving said valves.

, 3. In a `boiler cleaner, the combination with a blower elementhaving a plurality of nozzles arranged inl groups for discharging cleaning fluid, of plurality of valves for controlling the discharge of the cleaning fiuid through respective groups of saidl nozzles, and means dependent upon the movement of said blower element for actuating said valves, `said means including an axially movable and rotatable member.

fl- In a boiler cleaner,vv the combination with a rotary bloweruelement having a4 plurality of nozzles arranged in groups for discharging cleaning fluid, of 'means for separately conducting cleaningliuid to each of said groups, a plurality of valves .for controlling the passage of cleaning fluid through said conducting means, and means dependent upon the rotation ofisaid blower element for moving said valves from their seats, said means including asiiigle Vcontrol member.

5. In a boiler cleaner, the combination with a blower element having a plurality of nozzles arranged in groups foi discharging cleaning fluid, of a plurality of valves h aving valve stems for controlling the discharge of the cleaning nuid through respective groups ofsaid nozzles, and means engageable withthe 4stems of the valves dependent upon movement of said blower element for moving saidvalves to open position.

6. In a Aboiler cleaner, the 'combination with a rotary blower element having a plurality of nozzles arranged in groups-for discharging cleaning fluid, of means for separately conducting cleaning fluid to each of said groups, a plurality of valves for controlling the passage of cleaning fiuid through said "conduct-ing means, and means dependent upon the rotation of said blower element for alternately moving said valves to open position, said ineansincluding an axially movable member adapted to be rotated upon rotation of said blower element.

7. In a boiler cleaner, `the combination with a blower element having a plurality `of nozzlesarranged in groups for discharging cleaning fluid, of a tube arranged concentrically within the blower element forfconducting cleaning fluid to the nozzles of onev of said groups, said inner tube having a portion spaced from the blower element, one of said nozzle groups being in communication with said space.,and means for controlling the passage of cleaninguidwithin said tube and between Vthetu'be and inner walls of' the blower element for discharge through -said groups of nozzles respectively,

`8. I n a boiler cleaner, a blower element formed of a pair ofconcentricallyv arranged tubes, the outer tube having a pluralityY of nozzles arranged in groups for discharging cleaningY fluid from said tubes, and imeans for separately supplying cleaning fluid to each lof said groups, and means for controlling the supply ofthe cleaning fluid.

9, In a boiler cleaner, the combination with a blower' element having a plurality of nozzles Aarranged inl groups for discharging cleaning fluid,'of means including a tube arranged within the said element for separately supplying "cleaning fluid to said groups of nozzles, `'and means, dependent upon movement of said blower element for automatically controlling the supply of -the cleaning fluid. l

' 10.In a boiler cleaner, a blower element formed yof a plurality of concentric cleaning fluid conducting tubes, a nozzle in communication'with each tube for discharging Vcleaning fluid from said tube, a separate conduit for supplying cleaning `fluid to each of said tubes, a separate valve" controlling the supply of cleaningv fluidl to each Vof said conduits. and 'means for'actuatingsaid valves In testimony whereoffiafiix my signature. 

